On the way back to the main house, Nangong Yi noticed that his grandfather was dozing off. Although he had many questions, he also realized that his grandfather seemed unwilling to mention these things in front of outsiders.

We returned to the main house at only 6:30 in the morning.

Nangong Cang deliberately avoided his son and daughter-in-law, quickly led Nangong Yi into the study, and then carefully opened a hidden door behind the large bookcase.

Nangong Yi was slightly taken aback. It wasn't his first time entering his grandfather's study, but he never knew there was such a secret door behind the large bookshelf.

When he went in with his grandfather, he found that it was an old room that looked a bit worn. Various ancient books and scrolls were placed on the walls on both sides, and there were also many small and exquisite brocade pouches on those scrolls.

"Grandpa, what is this room?"

"This is a place that only the heads of the Nangong family can enter. I originally planned to tell you this secret a few days before Xiaoxiao gave birth, but the situation has changed. I believe the ancestors will understand."

Nangong Cang sat at his desk, glanced at the twelve constellation chart on the table, and looked solemn.

“Yi’er, you and I both know very well what kind of person Su Xiaoxiao was originally. No matter how a person changes, they will never suddenly become a different person like Xiaoxiao. Although Grandpa does not know who she is now, Grandpa knows very well that the current Su Xiaoxiao is Nangong Cang’s granddaughter-in-law.”

What do you mean by that?

Nangong Yi became increasingly uneasy as he listened, but his grandfather's expression didn't seem to be joking with him, which made him inexplicably nervous.

Nangong Cang waved to him, and as Nangong Yi placed his hand on the star chart in front of him, a warm ray of light suddenly enveloped him.

At this moment, Nangong Cang continued:

"Our Nangong family's ancestor was an ancient Yin-Yang master who has been protecting his descendants since his death. The bracelets that Xiaoxiao and your mother are wearing are treasures passed down from our ancestors. Wearing them will protect the mistress of the Nangong family throughout her life."

The day you brought Xiaoxiao back to the main house, I sensed something was wrong with her. After several attempts to test her, I was certain that my real daughter-in-law had appeared, so I gave her that bracelet.

Actually, before you and Su Xiaoxiao registered your marriage, I did a serious divination on your marriage. You two are definitely destined to become husband and wife, but after marriage, you will meet your true wife.

I didn't understand at first either, but I felt relieved after noticing the small changes.

Hearing this, Nangong Yi felt it was outrageous, but he still chose to believe it.

"Grandpa, why didn't you tell me beforehand?"

"The ceremony for the succession of the family head in each generation is always to reveal this secret the day before the previous family head dies. The fate of the family head is predetermined. Once the family head's granddaughter-in-law gives birth to a boy, the next day will be the day the old family head dies."

"How is that possible!"

Nangong Yi looked at his grandfather with disbelief, and the worry in his eyes became clear.

But Nangong Cang just smiled faintly, as if he had already seen through life and death.

“In the past, all the wives of the Nangong family have given birth to boys, and every patriarch has been born in the grandson generation. We are no exception. In fact, the ‘secret guards’ under your grandfather’s command were also left by our ancestors. We kept it from you before because the time was not right.”

"Isn't there a way to solve this?"

Nangong Yi looked at his grandfather with unease. If Su Xiaoxiao knew about this, she would feel very guilty.

However, Nangong Cang sighed helplessly.

The ancestral precept of the Nangong family: Only when a granddaughter-in-law of the patriarch gives birth to a girl will the ancestral decree that has been guarded for generations disappear, and at that time, everything preordained will no longer be hindered.

On the day the girl is born, the main house where the family heads have lived for generations will collapse in an instant, and the secret of the Nangong family will be lost forever.

At that time, the Nangong family's honor and fortune will depend solely on the wisdom and hard work of its descendants...